To date, spinal cord BOLD-fMRI has generated
considerable efforts to obtain robust activation maps. One possible cause of
the low sensitivity of this technique in the spinal cord are the relatively
narrow activation blobs, making activation maps extremely sensitive to subject
motion. This study demonstrates the benefits of 2D versus 3D methods to correct
subject motion in axial fMRI time series of the spinal cord. SliceCorr, a
spinal cord-dedicated method has been developed and compared with 3D-based
methods, using human dataset of the whole cervical spinal cord. Results showed
the least residual motion for the SliceCorr-corrected datasets in all subjects.